Phosphodiesterase 9 (PDE9) Regulates Bovine Tracheal Smooth Muscle Relaxation

Tsuyoshi Tajima, Tamami Shinoda, Norimoto Urakawa, Kazumasa Shimizu, Takeharu Kaneda

J Vet Med Sci. 2018 Mar 24;80(3):499-502.

PMID: 29386424

Abstract:

The present study was designed to clarify phosphodiesterase 9 (PDE9) expression in bovine tracheal smooth muscle tissue, and to elucidate that PDE9 may contribute to the regulation of airway relaxation. PDE9 mRNA expression was detected in bovine tracheal smooth muscle. Sodium nitroprusside (an NO donor) and BAY 73-6691 (a selective PDE9 inhibitor) reduced high K+- and carbachol-induced contraction. BAY 73-6691 relaxed tracheal tissue on the same level with vardenafil (a selective PDE5 inhibitor). These results support our hypothesis that PDE9 plays functional role in the tracheal smooth muscle relaxation. PDE9 inhibitors are expected to be a novel target of the add-on treatment of airway hyperresponsiveness.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP794568926	BAY 73-6691		794568-92-6	Price